<template>
  <div>
    <el-dialog :title="showTitle"
               :visible="showDialog"
               @close="close">
      <!-- 放置弹层内容 -->
      <el-form ref="addDept"
               :model="formData"
               :rules="rules"
               label-width="120px">
        <el-form-item prop="name"
                      label="部门名称">
          <el-input v-model="formData.name"
                    placeholder="2-10个字符"
                    style="width: 80%"
                    size="mini" />
        </el-form-item>
        <el-form-item prop="code"
                      label="部门编码">
          <el-input v-model="formData.code"
                    placeholder="2-10个字符"
                    style="width: 80%"
                    size="mini" />
        </el-form-item>
        <el-form-item prop="managerId"
                      label="部门负责人">
          <el-select v-model="formData.managerId"
                     placeholder="请选择负责人"
                     style="width: 80%"
                     size="mini">
            <!-- 下拉选项 循环 负责人数据 label表示显示的字段 value 存储字段 -->
            <el-option v-for="item in managerList"
                       :key="item.id"
                       :label="item.username"
                       :value="item.id" />
          </el-select>
        </el-form-item>
        <el-form-item prop="introduce"
                      label="部门介绍">
          <el-input v-model="formData.introduce"
                    placeholder="1-100个字符"
                    type="textarea"
                    size="mini"
                    :rows="4"
                    style="width: 80%" />
        </el-form-item>
        <el-form-item>
          <!-- 按钮 -->
          <el-row type="flex"
                  justify="center">
            <el-col :span="12">
              <el-button size="mini"
                         type="primary"
                         @click="btnOK">确定</el-button>
              <el-button size="mini"
                         @click="close">取消</el-button>
            </el-col>
          </el-row>
        </el-form-item>
      </el-form>
    </el-dialog>
  </div>

</template>
<script>
import { getDepartment, getManagerList, addDepartment, getDepartmentDetail, updateDepartment } from '@/api/department'
export default {
  props: {
    showDialog: {
      type: Boolean,
      default: false
    },
    currentNodeId: {
      type: Number,
      default: null
    }
  },
  data () {
    return {
      managerList: [], // 存储负责人列表
      formData: {
        code: '', // 部门编码
        introduce: '', // 部门介绍
        managerId: '', // 部门负责人id
        name: '', // 部门名称
        pid: '', // 父级部门的id
        // id: ''
      },
      rules: {
        code: [{ required: true, message: '部门编码不能为空', trigger: 'blur' },
        {
          min: 2, max: 10, message: '部门编码的长度为2-10个字符', trigger: 'blur'
        }, {
          trigger: 'blur',
          // 自定义校验模式
          validator: async (rule, value, callback) => {
            // value就是输入的编码
            let result = await getDepartment()
            if (this.formData.id) {
              result = result.filter(item => item.id !== this.formData.id)
            }
            // result数组中是否存在 value值
            if (result.some(item => item.code === value)) {
              callback(new Error('部门中已经有该编码了'))
            } else {
              callback()
            }
          }
        }
        ], // 部门编码
        introduce: [{ required: true, message: '部门介绍不能为空', trigger: 'blur' }, {
          min: 1, max: 100, message: '部门介绍的长度为1-100个字符', trigger: 'blur'
        }], // 部门介绍
        managerId: [{ required: true, message: '部门负责人不能为空', trigger: 'blur' }], // 部门负责人id
        name: [{ required: true, message: '部门名称不能为空', trigger: 'blur' },
        {
          min: 2, max: 10, message: '部门名称的长度为2-10个字符', trigger: 'blur'
        }, {
          trigger: 'blur',
          // 自定义校验模式
          validator: async (rule, value, callback) => {
            // value就是输入的编码
            let result = await getDepartment()
            if (this.formData.id) {
              result = result.filter(item => item.id !== this.formData.id)
            }
            // result数组中是否存在 value值
            if (result.some(item => item.name === value)) {
              callback(new Error('部门中已经有该名称了'))
            } else {
              callback()
            }
          }
        }] // 部门名称
        // pid: '' // 父级部门的id 不需要做校验
      }
    }
  },
  computed: {
    showTitle () {
      return this.formData.id ? '编辑部门' : '新增部门'
    }
  },
  created () {
    this.getManagerList()
  },
  methods: {
    close () {
      this.formData = {
        code: '', // 部门编码
        introduce: '', // 部门介绍
        managerId: '', // 部门负责人id
        name: '', // 部门名称
        pid: '', // 父级部门的id
        // id: ''
      }
      // 修改父组件的值 子传父
      this.$refs.addDept.resetFields() // 重置表单
      this.$emit('update:showDialog', false)
    },
    async getManagerList () {
      this.managerList = await getManagerList()
    },
    // 点击确定时调用
    btnOK () {
      this.$refs.addDept.validate(async isOK => {
        if (isOK) {
          let msg = '新增'
          if (this.formData.id) {
            msg = '更新'
            await updateDepartment(this.formData)
          } else {
            await addDepartment({ ...this.formData, pid: this.currentNodeId })
          }

          // 通知父组件更新
          this.$emit('updateDepartment')
          // 提示消息
          this.$message.success(`${msg}部门成功`)
          this.close()
        }
      })
    },
    async getDepartmentDetail () {
      this.formData = await getDepartmentDetail(this.currentNodeId)
    },

  }
}
</script>
